I landed mid-afternoon on a Sunday recently having flown from LAX. I have a UK passport but I don't think it makes a lot of difference these days. Everyone from all arriving flights gets ferried into the same long queue, unless you're coming from a "red list" country. It was probably about an hour from joining the queue to getting through to collect my bags, but seemingly some people have endured worse. I'd check to see which other flights are arriving at a similar time to yours.